Recent Progress on Flexible Zn-Air Batteries

With the rapid development of flexible and wearable electronics, flexible zinc-air battery technology attracts ever-increasing attention and is considered as one of the most promising energy storage systems. However, its practical application is still at the preliminary stage. In this review, the basic battery configurations and design principles are discussed for flexible zinc-air battery, followed by challenges and recent progresses in developing each battery component, in terms of polymer electrolyte, metal anode and air cathode. An overview of flexible zinc-air battery is provided here with the aim to present a clear picture of current research directions.